Table 6 Univariable and multivariable analysis of risk factors for DR-TB in normal weight cases

Age (years) (n = 5186/n = 1206)

0–14

10 (0.19%)

2 (0%)

0.868 (0.189–3.997)

0.856

0.96 (0.209–4.459)

0.963

15–24

812 (15.66%)

187 (0.26%)

Reference

Reference

Reference

Reference

25–44

1356 (26.15%)

369 (0.52%)

1.182 (0.971–1.438)

0.096

1.17 (0.961–1.426)

0.118

45–64

1780 (34.32%)

407 (0.57%)

0.993 (0.819–1.203)

0.942

0.95 (0.781–1.159)

0.622

 > 65

1228 (23.68%)

241 (0.34%)

0.852 (0.69–1.052)

0.137

0.829 (0.667–1.03)

0.091

Sex (n = 5207/n = 1210)

Female

918 (17.63%)

185 (15.29%)

Reference

Reference

Reference

Reference

Male

4289 (82.37%)

1025 (84.71%)

1.186 (0.998–1.408)

0.052

1.26 (1.059–1.513)

0.010*

Cavity (n = 4624/n = 1065)

No

2640 (57.09%)

565 (53.05%)

Reference

Reference

Reference

Reference

Yes

1984 (42.91%)

500 (46.95%)

0.86 (0.702–1.054)

0.147

1.15 (1.006–1.319)

0.040*

Smoking (n = 4188/n = 949)

No

3125 (74.62%)

722 (76.08%)

Reference

Reference

Reference

Reference

Yes

1063 (25.38%)

227 (23.92%)

0.924 (0.784–1.09)

0.348

0.984 (0.79–1.226)

0.887

Drinking (n = 4160/n = 943)

No

3257 (78.29%)

758 (80.38%)

Reference

Reference

Reference

Reference

Yes

903 (21.71%)

185 (19.62%)

0.88 (0.738–1.051)

0.158

0.858 (0.68–1.084)

0.2

Co-morbidity (n = 5207/n = 1210)

No

4665 (89.59%)

1074 (88.76%)

Reference

Reference

Reference

Reference

COPD

94 (1.81%)

20 (1.65%)

0.91 (0.562–1.487)

0.718

0.938 (0.5–1.76)

0.843

Diabetes

354 (6.8%)

97 (8.02%)

1.195 (0.946–1.51)

0.136

1.23 (0.969–1.568)

0.089

Hypertension

98 (1.88%)

19 (1.57%)

0.83 (0.507–1.365)

0.466

0.91 (0.548–1.514)

0.72

Other co-morbidity

216 (4.15%)

51 (4.21%)

1.01 (0.744–1.389)

0.917

1.11 (0.746–1.667)

0.596